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cos_ay.exe

Yu Bao

The executable cos_ay.exe has been detected as malware by 1 anti-virus scanner.
Publisher:
Yu Bao  (signed and verified)

Version:
201606221421

MD5:
4f1d478735c132b2790aee5754a6f9f3

SHA-1:
f56ffad3dc56d9ac9105f29717125d3713f54fe7

SHA-256:
9b7e435835a17d6fbda5176541510ae46aa0bcea25f99a162dc5403378bf09c3

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
2/25/2025 11:01:15 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.10.11.11

File size:
398.3 KB (407,872 bytes)

Product version:
201606221421

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\exe\6dc1e543e2b576f4dccc530941d89e5d\cos_ay.exe

Digital Signature
Signed by:
Yu Bao

Authority:
thawte, Inc.

Valid from:
6/16/2016 5:00:00 PM

Valid to:
10/20/2016 4:59:59 PM

Subject:
CN=Yu Bao, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
35080DDF2DA6A0C3D28C9AAC05D7DDB5

File PE Metadata
Compilation timestamp:
6/21/2016 11:22:50 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
12288:fTYkA2o2b758/N04psetS5UO6MqHeIxLO:bYkA2o2bQNPQB2eGLO

Entry address:
0x3017B

Entry point:
E8, 84, 89, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, FF, 15, 60, 01, 45, 00, 6A, 01, A3, 94, 31, 46, 00, E8, D1, 8E, 00, 00, FF, 75, 08, E8, 66, 8E, 00, 00, 83, 3D, 94, 31, 46, 00, 00, 59, 59, 75, 08, 6A, 01, E8, B7, 8E, 00, 00, 59, 68, 09, 04, 00, C0, E8, 34, 8E, 00, 00, 59, 5D, C3, 55, 8B, EC, 81, EC, 24, 03, 00, 00, 6A, 17, E8, 74, 50, 01, 00, 85, C0, 74, 05, 6A, 02, 59, CD, 29, A3, 78, 2F, 46, 00, 89, 0D, 74, 2F, 46, 00, 89, 15, 70, 2F, 46, 00, 89, 1D, 6C, 2F, 46, 00, 89, 35, 68, 2F, 46, 00, 89, 3D, 64...
 
[+]

Entropy:
6.4576

Code size:
314 KB (321,536 bytes)

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